Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 141: | \[{10^{141}-1\over9}\] | 3 × 37 × 283 × 35121409 × 721030498171501831<18> × 316362908763458525001406154038726382279<39> × 441506346488360048482114135141919313523563714948107161215664533500695867<72> |